Pneumatic tire



w. w. MOORE. PNL-:ummm URE.

APPLICATION FILED APR. 21| I92I- u' 1 Patented May 9, 1922.

gOIIWOItOL l, u'omcff' PATENT Ormes.

y WILLLAM w. MOORE, or sronelvn, wnsnnvoron.-

PNEUMATIC TIRE.

Specification of Letters Patent.

Application filed April 21, 1921. Serial No. 463,275.

To all wlw/m, t may concern.' Y

Be it known that I, WILLIAM W. MOORE, a citizen of the United States, residing at Spokane, in Spokane County and State of Washington, have invented certain new and useful Improvements in Pneumatic Tires, of which the followingis a specification.

My present invention .relates to improvements in pneumatic tires of the automobile type, and is designed particularly for the purpose of improving thejconstruction of the wheel rim forthe accommodation of -thevalve and valve stem of the pneumatic tire portion of the wheel.

As is well' known to automobilists and others skilled .in mounting the casing of a pneumatic' tire, difficulty is often encountered in properly adjusting and alining the valve stem With relation to the rim in' vorder that when pressure'is applied to the inner tube the stem willl not bind or frictionally engage the sides of the hole in the rimas the latter are now constructed.` To' facilitate the applicationl ofthe casing to the wheel, I provide movable and adjustable means, forming-an elementl ofthe rim, whereby the valve stem is'accommodated in the rim and may be applied thereto With ordinary care but with the assurance that after the wheel is assembled and compressed air forced into the inner-tube, the stem will be permitted to readily adapt itself to the valve stem opening in the rim, and assume properly alined position through the rim. By the utilizatlon of my invention in a wheel rim all danger of incorrectly positioning the valve stem is avoided and the danger of the stem being torn loose from its tube, or loosened to permit leakage is entirely eliminated.

In the accompanying drawings I have illustrated one complete example of the physical embodiment of my invention in which the parts are combined and arranged according to the best mode I have thus far devised for the practical application of the principles of my invention.

Figure 1 is a view in side elevation of a disk type of pneumatic wheel in which my invention is embodied, part of the wheel being broken away for convenience in illustration of the relationship of parts.

Figure 2 is an enlarged, transverse Sectional view of a wheel, at the valve stem location showing the general assembly of parts.

Figure 3 is a still further enlarged transverse sectional: viewof a channel rim formr'ate'nteaMa'y 9,1922.

ing parti of .the wheel and embodying vmy invention.

.Figure 4 vis a longitudinal or circumferential sectional view vthrough the channel rim showing the guide plate for the valve stem and the fixed guide plate for this movablev guide plate.

Figure 5 is a detail perspective viewv of the movable guide or adjusting plate for the valve stem.4

While I lhave illustrated a particular type of automobile wheel in the drawings, it will be understood that the invention may be applied to other types or styles of wheels,"and

the disk wheel of the drawings is used only for ypurposes yof exemplification of the invention. The several parts of the wheel as the tire casing l, center'- disk Qof sheet metal, felly 3 of metal orwood, lugs or fastenings 4, and the channel rim 5 with its annular anges 6 are all of well lknown or accepted form, and the inner tube 6 and valve. `stem 7 with its cap 8 may be of approved or standard type.

In the adaptation yof my invention to an existing wheel rim and converting it for use according to my invention, or in the vmanufacture of especially embodied rims involving the features of my invention, I utilize a movable guiding and adjusting plate 9 for the stem 7, which plate is somewhat curved to conform to the periphery of the rim, and as shown in Figure 5 may be rectangular in outline, although other shapes may be adopted if desired.

At its center, the curved plate 9 is fashioned with an opening and at its inner side, when in proper position, the plate has an open boss l0 projecting therefrom in order that its walls may be of suitable depth to encase the stem after the latter has been inserted therein, the opening through thel oiset from the inner face of the rim a suiiicient distance to form a pocket 13 of a length necessary to provide end spaces approximately equal to the length of the slot l1 in the rim. The movable guide plate is encased in this pocket and the boss of the plate projects through a slot in the fixed plate indicated at 14C, which is approximately the length of the slot 11 in the rim, and of a Width to permit free movement of the boss therein. The Walls 'of the pocket 13 are flanged as at l54 and may be brazed, Welded, or riveted to the inner face of the Wheel rim as shown in Figure 4, to form a rigid structure therewith.

The utility of the invention will be apparent from the description and illustration herein given, and it Will be evident that in assembling the parts of the Wheel, when the casing is mounted on the rim, if the casing is started on the rim so that the valve stem 7 will pass through the open boss 10 of the plate 9 the air may be introduced through the valve stem to the inner tube in usual manner. If the stem is not in alined, radial position preliminary to the introduction of air pressure, it will readily be seen that the increasing pressure in the tire will cause the stem to assume the correct position and the movable guide plate 9 is. readily adjusted to the movement of the stem in erecting itself, thus permitting the stem to assume the proper radial position with respect to the Wheel. As the stem assumes the correct position the slide plate 9 moves in its pocket either to the right or to the left in Figure 4 until the stem is in alined position.

rl'he pocket may be applied to the Wheel rim With facility and at comparatively slight expense, and the slide or guide plate may be stamped or struck up from metal in quantities of production thus insuring an inexpensive but comparatively perfect device for performing its required functions.

Having thus fully described my invention, what l claim as new and desire to secure by Letters Patent is zl. The combination with a circumferentially slotted Wheel, rim and a slotted, fixed plate thereon forming a pocket on its inner periphery, of a movable guide plate in said pocket and said slotted rim and movable plate adapted to receive a valve stem as described.

2. The combination with a circumferentially slotted wheel rim and a complementarily slotted fixed plate on the inner periphery of the rim forming a pocket, of a movable guide plate in said pocket having an inner open boss movable in the slotted fixed plate, and said rim and slide plate adapted to receive a valve stemas described.

3. The combination with a pneumatic tire including its outer casing, inner tube and valve stem thereon and a circumferentially slotted Wheel rim, of a circumferentially movable guide plate to receive said stem, and means on said rim for retaining said guide plate.

In testimony whereof I aix my signature.

WM. W. MOORE. 

